Determine the higher of 2 numbers

[sreich]

The following program has an error but I can't figure out what it is. The output should look like this:
Welcome to Minimum and Maximum!
Enter the first number:
3
Enter the second number:
4
The number 3 is lower than 4.
Program ended with exit code: 0

But instead I keep getting O in the final statement. Please help!!

#include <iostream>
using namespace std;
#define _USE_MATH_DEFINES ;
#include <cmath>

int main() {
double input1;
double input2;
double minimumValue;
double maximumValue;
cout <<"Welcome to Minimum and Maximum!\n";
cout <<"Enter the first number:\n";
cin >> input1;
cout <<"Enter the second number:\n";
cin >> input2;
fmin(minimumValue,maximumValue);
fmax(minimumValue,maximumValue);
cout <<"The number " << minimumValue << " is lower than " << maximumValue << "." ;
cout << endl;
return 0;
}

[keskiverto]

Can you explain what the fmin and fmax do?

What are the input1 and input2 for?

[jonnin]

you are callin fmin and fmax with uninitialized data. They look like they should be taking input 1 and input 2 instead... else GIGO.

consider not even using functions for this.

max = min = input1;
if (min > input2) min = input2;
if (max < input2) max = input2;
cout << "..." << min << "..." << max << "..." << endl;